As of December 2025 Kirby Corporation has a market cap of A$9.41 Billion. This makes Kirby Corporation the world's 2689th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 4th, 2025 the market cap of Kirby Corporation was reported to be: